1.4.1 On OSX

[Dave Page <dpage(at)vale-housing(dot)co(dot)uk>]

Hi Andreas,

I finally tracked down the bug in 1.4.1 on Mac which causes a crash whenever
pretty much any property dialogue is opened. Basically, in
ctlComboBox::GetSelection() we call GetCurrentSelection(). In wxMac however,
this simply calls GetSelection() which is a virtual and results in our
GetSelection() actually getting called, in turn causing a loop and eventual
stack overflow.

So, the attached patch seems to fix the problem and return the auto-complete
code to the same slightly-broken-but-usable state that it was in 1.4.0 (i.e,
you can only type the first character of a data type for example, and the
first match will be selected).

Can you take a look and confirm my analysis (or call me an idiot, whatever
is correct!) before I apply this to both branches and packare 1.4.1.plus
please?

Regards, Dave

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